GENERAL DESCRIPTION
The Philips SA56004X is an SMBus compatible, 11-bit remote/local digital temperature sensor with over temperature alarms. The remote channel of the SA56004 monitors a diode junction, such as a substrate PNP of a microprocessor or a diode connected transistor such as the 2N3904 (NPN) or 2N3906 (PNP). With factory trimming, remote sensor accuracy of ±1°C is achieved.
   
FEATURES
• Accurately senses temperature of remote microprocessor thermal
    diodes or diode connected transistors within ±1 °C
• On-chip local temperature sensing
• 11-bit, 0.125 °C resolution
• 8 different device addresses are available for server applications.
    The SA56004ED/EDP with marking code 56004E/600E is
    address compatible with the National LM86, the MAX6657/8 and
    the ADM1032.
• Offset registers available for adjusting the remote temperature
    accuracy
• Programmable under/overtemperature alarms: ALERT and T_CRIT
• SMBus 2.0 compatible interface, supports TIMEOUT
• Operating voltage range: 3.0 V to 3.6 V
• I2C-bus standard and fast mode compatible
• TSSOP8 and SO8 packages
• Programmable conversion rate (0.0625 Hz to 26 Hz)
• Undervoltage lockout prevents erroneous temperature readings
• Latch-up testing is done to JESDEC Standard JESD78 which
    exceeds 100 mA
   
APPLICATIONS
• System thermal management in laptops, desktops, servers and
    workstations
• Computers and office electronic equipment
• Electronic test equipment & instrumentation
• HVAC
• Industrial controllers and embedded systems